Cobaltite and Iolite Physical Properties

Cobaltite

Iolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.32.6-2.7

1 7.18

1.5 Fracture

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

Not Available

1.6 Cleavage

{100} Good, {010} Good, {001} Good

3,1

1.7 Mohs Hardness

5.57-7.5

2 10

1.8 Chemical Composition

CoAsSAnthony et al , Handbook of mineralogy (2001)

Mg₂Al₄Si₅O₁₈

Cobaltite and Iolite Chemical Formula

While comparing Cobaltite and Iolite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Cobaltite and Iolite chemical formula.

Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Cobaltite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cobaltite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cobaltite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Cobaltite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.